Turkish Journal of Field Crops


90 232 311 26 79




2. Beyler İş Hanı, No: 313 Kat: 3 Konak-İzmir


Mustafa YILMAZ, Cenk Burak SAHIN


Plant growth regulators are organic substances that are synthesized naturally within the plant, and controlled the physiological events, can be transported from where they are formed to other parts of the plants, and can show their effects even at very low concentrations. In this study, it was aimed to determine the effect of different doses of plant growth regulators in different growth stages on oil content and fatty acid compositions of peanut (Arachis hypogaea L.). A total of twelve different treatments were preferred with different chemicals such as gibberallic acid (GA3), mepiquat-chloride (MC), and seaweed (SW) in different growth stages (beginning bloom (BB), full bloom (FB) and beginning bloom + full bloom (BB+FB)). The highest oil content was obtained in MCFB200 (55.46%) treatment, while the lowest was obtained in GA3BB20 (45.44%) treatment. Oleic acid ratio varied from 50.33% to 59.25%, and all treatments were higher than that of the control group. The highest and lowest linoleic acid ratios were observed in SWBBFB100 (26.72%) and GA3FB10 (19.52%) treatments, respectively. MCFB200 and GA3FB10 treatments could be recommended for the highest oil ratio and the highest oleic acid ratio, respectively.

Keyword: Arachis hypogaea L., groundnut, iodine value, oil content, oleic acid, plant growth regulator ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN


A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.
Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding